256129944

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{197}}^1$

素因数の和:393

約数の個数: 128

約数和(自身を含む): 752716800

約数和(自身を除く): 496586856

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 71, 84, 109, 142, 168, 197, 213, 218, 284, 327, 394, 426, 436, 497, 568, 591, 654, 763, 788, 852, 872, 994, 1182, 1308, 1379, 1491, 1526, 1576, 1704, 1988, 2289, 2364, 2616, 2758, 2982, 3052, 3976, 4137, 4578, 4728, 5516, 5964, 6104, 7739, 8274, 9156, 11032, 11928, 13987, 15478, 16548, 18312, 21473, 23217, 27974, 30956, 33096, 41961, 42946, 46434, 54173, 55948, 61912, 64419, 83922, 85892, 92868, 97909, 108346, 111896, 128838, 150311, 162519, 167844, 171784, 185736, 195818, 216692, 257676, 293727, 300622, 325038, 335688, 391636, 433384, 450933, 515352, 587454, 601244, 650076, 783272, 901866, 1174908, 1202488, 1300152, 1524583, 1803732, 2349816, 3049166, 3607464, 4573749, 6098332, 9147498, 10672081, 12196664, 18294996, 21344162, 32016243, 36589992, 42688324, 64032486, 85376648, 128064972, 256129944]

約数ペア:

[(1, 256129944), (2, 128064972), (3, 85376648), (4, 64032486), (6, 42688324), (7, 36589992), (8, 32016243), (12, 21344162), (14, 18294996), (21, 12196664), (24, 10672081), (28, 9147498), (42, 6098332), (56, 4573749), (71, 3607464), (84, 3049166), (109, 2349816), (142, 1803732), (168, 1524583), (197, 1300152), (213, 1202488), (218, 1174908), (284, 901866), (327, 783272), (394, 650076), (426, 601244), (436, 587454), (497, 515352), (568, 450933), (591, 433384), (654, 391636), (763, 335688), (788, 325038), (852, 300622), (872, 293727), (994, 257676), (1182, 216692), (1308, 195818), (1379, 185736), (1491, 171784), (1526, 167844), (1576, 162519), (1704, 150311), (1988, 128838), (2289, 111896), (2364, 108346), (2616, 97909), (2758, 92868), (2982, 85892), (3052, 83922), (3976, 64419), (4137, 61912), (4578, 55948), (4728, 54173), (5516, 46434), (5964, 42946), (6104, 41961), (7739, 33096), (8274, 30956), (9156, 27974), (11032, 23217), (11928, 21473), (13987, 18312), (15478, 16548)]